Feed mill



June 1928.

e. w. RYNDERS FEED MILL Filed Jan. 2 1924' INVENTOR GEO/F611" VIM v0 BY 5/ 7%. Mm

TORNE Y Patented June 5, 1928.

UNITED' STATES 1,672,544 PATENT orrrcr.

' GEORGE W. RYNDERS OF IBELOI'I, WISCONSIN, ASSIGNOR TO FAIRBANKS, MORSE & OO.,

OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS. I

FEED MILL.

Application filed January 28, 1924. Serial No. 689,026.

.My invention relates to improvements in feed mills.

The objects of my invention are to provide a new and novel means for mounting and adjusting the cutter-bar, whereby the impact from the cutter-bar will be taken by the frame of the mill and to provide a means whereby excessive wear on the lower parts of the mill-hopper may be prevented. l0 Heretoforeit has been customary to attach the cutter-bar in feed mills to the top of the frame so that the impact from the cutter-bar is taken by the heads of the bolts holding the cutter-bar to the frame. In my method of mounting .the cutter-bar is preferably attached to the under side of the 7 frame so that the impact from, the cutter-bar is carried by the frame, thus making for a sturdier construction and saving wear on the attaching bolts which, in previous types,

had to be replaced very frequently. A method is also employed in my invention for adjusting the cutter-bar in which bolts for the adjustment are preferably run through the frame, thus making adjustment accessible and much easier. By running the frame up inside the mill hopper I have also provided a very simple means for takin excessive wear from the lower part of the Iiop per, thus eliminating the necessity of frequent replacements of the hopper.

Though my invention consists largely in the construction and arrangement of parts hereinafterdescribed and particularly pointed out in the claims, yet I do not limit my invention to the precise form or construction of parts shown or the several parts thereof, inasmuch as various alterations may be made without changing the scope of my invention.

In the drawings Fig. 1 is a sectional view through a feed mill employing my invention and Fig.2 is a View of my adjusting means for the cutter-bar.

Referring by numerals to the drawings, the crusher is indicated at 6, mounted on shaft, 7 The direction of rotation of the crusher is indicated by the arrow. A cutter-bar, 8, is preferably attached to the underside of frame 9, by means 'of the bolts, 10. The underside of frame 9 is preferably substantially horizontal, as shown, and preferably serves as a bearing surface for the cutter-bar 8. The bolts 10 may also serve to attach the hopper, 11, to the frame or bed plate, 9. This hopper 11 may bemade of any suitable material such as is customarily used in the construction of hoppers, but is preferably made of thin, light material, such as shown. The bolt, 13, preferably extends through the nut, 12, and the frame, 9,'and serves to adjust the cutter-bar 8, by projecting its. cutting edge, 14 over the end of frame or bed plate 9, to any length desired. The'end of the cutter-bar, 8, is preferably notched to receive the end of the bolt, 12. I may, however, dispense with such notches and have the bolt, 12, contact directly with the cutter-bar, 8. The frame or bed plate 9, is preferably extended up. into the hopper, 11, as is clearly illustrated in the drawing, thus providing a reinforcing member 15 or wearing portion, which is preferably made integral with the frame 9 and which will take the wear at the lower portion of the hopper.

' I claim: 7

1. Ina mill, a supporting frame therefor, a hopper having its lower wearing portion formed by the frame, a cutter-bar adjustably attachedv tothe under side of said frame and so positioned that the upward thrust of the cutter-bar is taken directly by the mill frame, and an element adapted to secure said hopper and said cutter-bar to said frame. I I i 2. In a mill, a supporting frame therefor, a hopper, partially formed by the supporting frame, a cutter-bar, so positioned beneath said frame that the upward thrust of the cutter-bar is transmitted directly to the mill frame, and adjusting means for said cutterbar, said means including a holding member engaging the hopper, the cutter-bar and the ame.

3. In a mill, in combination with a supporting bed-frame, a hopper having a lower wearin portion formed by the frame. a detachdble hopper portion above the bedframe, a cutter-bar positioned beneath said 1 frame, and combined holding means for attaching said detachable hopper portion and cutter-bar to the bed-frame.

4. In a mill, a bed-frame, a hopper having a wearing wall integral with the frame, 10 and having an upper, detachable portion, a cutter-bar, so positioned with respect to the bed-frame that the upward thrust is transmitted directly to the frame and is opposed by the weight of the frame, and an attach- 1 10 ing element adapted to secure the detachable portion of the hopper, and the cutterbar to the bed-frame.

5. In a mill,- a frame forming inclined Wearing portions of a hopper, a sheet metal hopper structure adapted to be fitted on said frame, the Wearing portions and the Wa'l'ls'of said hopper structure being substantially in alignment, a rotary crusher member adapted to press material against said Wearing portions, a cutter-bar so positioned that the upward thrust thereof is directly opposed by the frame and Wearing portion, and an attaching element, adapted to secure the hopper structure and the putter-bar to the frame.

6. In a mill, a bed-frame forming the lower Wearing portions of a hopper, asheet metal hopper structure adapted to be fitted on said frame adjacent the Wearing portions,

a'stationary cutter bar mounted below a part of said frame which forms the Wearing portions, whereby the frame is adapted to receive the impact and thrust from, the cutter-- bar, and a rotary crusher member adapted to press material against said Wearing portions and said cutter bar; the hopper structachingelement for fastening the hopperand cutter-bar to the frame, and so associa'ted with the cutter-bar as to permit adustment thereof.

GEORGE W. RYNDERS. 

